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Update popup code (#1111)

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* Update popup code

* update xref
This commit is contained in:
Andy (Steve) De George
2021-07-19 18:35:48 -04:00
committed by GitHub
parent 5d38c60929
commit b0376d820a
9 changed files with 89 additions and 139 deletions
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dotnet-desktop-guide/framework/wpf/controls/popup-overview.md
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---
title: "Popup Overview"
description: Learn about the Windows Presentation Foundation Popup control, which provides a way to display content in a window that floats over the current application.
ms.date: "03/30/2017"
ms.date: "07/14/2021"
helpviewer_keywords:
- "controls [WPF], Popup"
- "Popup control [WPF], about Popup control"
@@ -19,12 +19,11 @@ The <xref:System.Windows.Controls.Primitives.Popup> control provides a way to di
<a name="APopupExample"></a>
## Creating a Popup
The following example shows how to define a <xref:System.Windows.Controls.Primitives.Popup> control that is the child element of a <xref:System.Windows.Controls.Button> control. Because a <xref:System.Windows.Controls.Button> can have only one child element, this example places the text for the <xref:System.Windows.Controls.Button> and the <xref:System.Windows.Controls.Primitives.Popup> controls in a <xref:System.Windows.Controls.StackPanel>. The content of the <xref:System.Windows.Controls.Primitives.Popup> appears in a <xref:System.Windows.Controls.TextBlock> control, which displays its text in a separate window that floats over the application window near the related <xref:System.Windows.Controls.Button> control.
[!code-xaml[PopupSimple#1](~/samples/snippets/csharp/VS_Snippets_Wpf/PopupSimple/CSharp/Window1.xaml#1)]
[!code-xaml[PopupSimple#CreatePopupCodeXAML](~/samples/snippets/csharp/VS_Snippets_Wpf/PopupSimple/CSharp/Window1.xaml#createpopupcodexaml)]
The following example shows how to define a <xref:System.Windows.Controls.Primitives.Popup> control that is the child element of a <xref:System.Windows.Controls.Primitives.ToggleButton> control. Because a `ToggleButton` can have only one child element, this example places the text for the `ToggleButton` and the `Popup` controls in a <xref:System.Windows.Controls.StackPanel>. The content of the `Popup` is displayed in a separate window that floats over the application window near the related `ToggleButton` control.
:::code language="xaml" source="snippets/popup-overview/csharp/Window1.xaml" id="ToggleButtonCodeless":::
<a name="PopupUses"></a>
## Controls That Implement a Popup
You can build <xref:System.Windows.Controls.Primitives.Popup> controls into other controls. The following controls implement the <xref:System.Windows.Controls.Primitives.Popup> control for specific uses: